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CVE-2026-27878

nvd nist
Published: Jun 19, 2026Modified: Jun 29, 2026

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.8 / Impact: 3.6
Source: security@grafana.com (Secondary)

Description

A TraceQL query in Grafana Tempo with a large exemplars hint value can cause the Tempo instance to allocate an excessive amount of memory, resulting in an out-of-memory crash. This could allow an authenticated user to trigger a denial of service against the Tempo service.

Affected (3)

Products: Grafana: Tempo
Grafana
1 product
Tempo
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Grafana
Tempo
From 2.10.0 to 2.10.2
Tempo
From 2.6.0 to 2.8.4
Tempo
From 2.9.0 to 2.9.2

Related CWEs

CWE-400
Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (1)

Source: security@grafana.com
Broken Link

Timeline

No history available yet.